Ethyl 2-(aminomethyl)-3-(difluoromethyl)-5-(trifluoromethoxy)pyridine-4-carboxylate
Methyl 3-(aminomethyl)-6-(difluoromethyl)-2-(trifluoromethoxy)pyridine-4-carboxylate
4-(Difluoromethyl)pyridine-3-sulfonyl chloride
Methyl 2-(aminomethyl)-4-(difluoromethyl)-3-(trifluoromethoxy)pyridine-5-carboxylate